Typewriting machine



Oct. 23, 1928.

J, WALDHEIM TYPEWRITING MACHNE.

Patented oet. 23, 1928.*

UNITED sine-'riss PATENT- OFFICE. Y

\v JOHN WA'LDHEII, 0l' ELIZABETH, NEW JERSEY, ASSIGNOB T O l T V I.

UNDEBWOOD ELLIOTT .FISHER COMPANY, lORNE'W YORK, N. Y., A'COBFPORATIN'0F DELAWARE.

TYPEWRITING mcnnm.- y v -appuoationmea Jury as, 1925. seal ne. 45,530.

This invention relates generally to typewriting machines, and isdirected particularly to an auxiliary bichromeribbon. The invention hasparticular applicationin making out work-sheets, all requiring certain'portions or columns to be typed V in a given color and other portionsorcolumns to be typed in a contrastnig color.

Oneof the features of the present invention consists in interleavin anauxiliary or secondary two-color ribbon 'etween an outer or originalsheet and a duplicate or roof sheet,\ so that the duplicate-sheet wil betyped conjointlywith the outer sheet. The

auxiliary ribbon extends across the platen, in interleavedrelation withthe work-sheets,

said ribbon being unwound from a'supplyspool, and then progressivelywound onto another spoolat each line-spacing operation of the platen.`In passing across the platen the ribbon is subjected to a series ofoldin or bending operations, whereby a portion o the length of theribbon takes such a course that the color field of the ribbon which isupperment along the printing line of the platen. from one. end to-theother thereof. The# I I bichrome device may also bemoved all the 40 wayacross theplaten, so as to occupy a position' adjacent either endthereof, such move' ment 'effecting a complete reversalottlie colors.and red', and `it is desired to 'type all in black` the ribben-invertingor' bichromemeans is moved -to oneend of theplaten, "and, Vvice versa,if red is desired. exclusively, the inverting means' is' moved to. theopposite end of the platen. There mayalso be provided -N asecondbichromedevice or -ribbon-'invertmg means for invertmg the ribbona secondtipe, thus'producingan intermediate zone y sheet,leaving aportion oft e duplicate- Vextremei'left ofthe platen.

lace. at any selected point, and

the ribbon.

For instance ifthe colors are black -of'a diiieren't color than thezones adjacent both sides thereof. i

Another. eature of the invention is the provision of a ribbon-guidingmeans used in conjunction with the bichrome device, the object being toinvert the ribbon to produce twoV diifela/nt color-fields adjacent theprinting line, and -also to elevate Va portion of the ribbon to a pointabove the printing-field, thus providing -clear space along a portion ofthe printi 'g line, whereby only the vmain ribbon of the machine types uon the outerv sheet untyped. t Y

Other features and advantages will hereinafter appean In theaccompanying drawings, Figure l is a front elevation of the platen 70and the platen-frame of a typewriting ma chine showing the inventionattached thereto. F'gure 2 is a vertical section on the line 2 2 ofFigure 1.

Figure 3 is a vertical section, through the ribbon-'inverting means, onthe line 3- 3 of Figurel. 7

Figure 4 is a view, showing the ribbon-inverting means 4shifted toaipoint adjacent the Fi' re 5 is a similar view to Fi 4: showlg the'ribbon-inverting means to the extreme right of the platen. e

Figure 6 is a perspective view, broken away and extended to illustratethe construction of the-ribbon-inverting means and the manner ofthreading the ink-ribbon therethrough. Figure 7 is a view, showing apair of ribbon-inverting devices, for doubly inverting' Figure Slis aview, showing a ribbon-in-- verting means and also means for elevating.a portion of the 'ribbon-abov@ the printing- Referring particularly ltoFigures .1 and 2 of the drawings', 10 represents a record or outer sheetand 11 va duplicate or proof sheet, both of the sh ts being. fedaround-a platen 12 and brouglil;e up to typing position to 1re-.- ceiveimpressions of 13; The platen 12 has a platen-shaft 14 Vmounted inendframes 15 of'a platen-frame, designated generally, -at 16.' Aplatei1-linespace ratchetwheel 17 co-operates with line-space'mecha- AFigure 6.),

.of the leg nism (not shown) to line-space the platen in the usual way.

A ribbon 18 includes two fields of diierent characteristics, which, forthe purpose of illustrating the invention, may be considered as an upperor black field 19 and a lower or red field 20, such ribbon beinggenerally termed a bichrome ribbon. Ribbon-vibrating mechanism,including ribbon-shifting means, not shown but which is well understoodin the art, is effective to raise the ribbon 18 to the printing-line Aupon driving the types 13 toward the platen, and the ribbon-shiftinglmeans is effective to bring either the black field 19 or the red field20 to the printing-line. Interleaved with the sheets 10 and 11, andextending along the printing-line of the platen,

there is an auxiliary or secondary ribbon 21,'

including a red field 22 and a black field 23, and clips or plates 24and 25, respectively at the left and the right ends of the platen, havediagonal slots 26, through which the ribbon 21 is `threaded, thediagonal slots being effective to turn or Ybend the ribbon 21 at rightangles, so as to be unwound from a spool 27, preferably at the right ofthe platen, and wound then onto a spool-28 at the left of the platen.

In view of the black and also an area or columns to be typed in red,means is provided for inverting the ribbon 21 at a predetermined pointalong the platen so as to bring the color field which is uppermost onone side of said point to the lowermost position on the opposite side ofsaid point. Thus all of the typed matter written on the original sheet19in different colors by the main ribbon 18 may be duplicated in thesame colors on the proof-sheet 11`. For inverting the ribbon, there isprovided a clip or rider 29,which is preferably in the form of a yoke30, arranged to embrace and straddle a rod 31, extending across theplaten 12, adjacent the top thereof, the ends of the rod being securedto the platen-frame, as shown at 32. The back of the yoke 30 is bent into form a shoulder 33 for engaging the under` side of the rod 31, theshoulder 33 acting as a guide against the rod to hold the rider 29 inproper position. Extending downward from the yoke 30 there is a rearwall or leg 34 and a front wall or leg 35, the legs being` preferablyfastened together by any suitable means such as rivets 29. The bottom orthe leg 34 has a diagonal edge 36 and the front leg has an oppositelydirected diagonal edge 37. The ribbon 21 is fed leftward across theplaten from the s ool 27, thence over the diagonal edge 36 o the leg 34,the ribbon partaking of a right-angular bend. and rising upwa-.rd at therear of said leg 34, and then threaded forwardly through a slot 38. (Seearrows in The ribbon is then threaded slot 39, adjacent theupper'portion through a 35, thence downward at thefront fact that thesheetl() usually includes an area or columns to be typed invprogressively moved across the platen to rbon in tightened conditionacross of said leg 35, until it reachesthe diagonal vtainng ears 34n and35a may be formed as parts, respectively, ofthe walls or legs 34 and 35.A set-screw 40, passing in threaded relation through the yoke 30 andinto engagement with the rod 31, is effective to hold theribbon-inverting rider 29 in any selected position along the rod 31. Itwill beseen,upon shifting the rider 29 along the platenathat theproportionate areas of different color fieldsto be brought to theprinting-line may be varied, at will, and' that said rider may be set atany position along the printing-line A where color-shiftingof the mainribbon 18 is to be made. Due to the numerous number of bends or anglestaken by said ribbon in proceeding from one spool to the inverting clipand then to the other spool, any ordinary ribbon-feeding mechanism wouldobviously be inadequate to feed the ribbon. In order to supply thedriving power needed to feed the ribbon across the platen, there isprovid ed a ratchet-and-pawl mechanism upon the spool 28. Referring toFigure 2, the reference numeiial 41 indicates a ratchet-wheel attachedto a shaft or pintle 42, upon which the spool 28 is mounted. Aline-space slide 43 is mounted on the left end fram@ 15 o theplatenframe' 16, and carries a standard 44, upon which a pawl 45ispivoted at 46. A sprng 47, attached to the pawl by a pin 48 and to thestandard b v a pin 49, is effective to hold the pawl 45 against astop-pin 50 in such manner that said pawl is directed toward the teeth51 of the ratchet-wheel 41. It will be seen, upon moving ythe line-spaceslide 43 inward, toward the' platen, that the pawl 45 will be broughtinto engagement with one ot the teeth 51. and thereby effect rotation ofthe spool 28, thus causing the ribbon to be bring fresh portions thereofto the print-ini!- point of the types 13. A detent 52 may be used as ameans for preventing loose motion of the spool 28, and thereby maintainthe ribthe iace of the platen, To yaid in inserting the sheets .aroundthe platen. all of the auxiliary-ribbonmechanism is vswingable to anelevated position above the platen, thereby permitting the lea-.dingedge of the proof-sheet to be fed, upward around the platen withoutinterference with the ribbon 21. For this purpose. the spools 27 and 28,the rod 31 carrying the rider 29, and the mechanism for feeding theribbon 21 are mounted upon a swing-frame 53, pivi lll oted at 54, upon.upstanding ears 5 5, mountconvenientposition to the rod 31, lenablingvthe swing-frame 53 to be easily raised. The

sheets and '11 may then be led downward over a rear paper-table 57, andbetween the usual feed-rolls 58 and the platen 12 to typing position.Attention is drawn to Figure 4, -Wherein thel ribbon-inverting rider 29has 'been shifted to the extreme lleft end of the platen, and it will beobserved'A that such ield 22 to the printing-line A. the black fieldbeing, of course, out of use. In Figure 5 theV ribbon-inverting' rider29 has been moved to the extreme right of the'platen, in which case thereverse condition is brought about, that is, the black field ofsaidribbon- 21v has been broughtto the printing-line across the entireprinting-length of the platen. Thus, it will be seen that the present`device Voilers an ex tremely simple and eii'ective means for quicklychanging the color of a bichrome ribbon. Sometimes it becomes desirableto write i upon a. certaixrportion of a sheet in-one c olor,

then to continue in another color for a cer'- tain distance, and thenrevert to the original A color.` For accomplishing this result, two

. ribbon-invertimer riders such. as already described are used, it beingobvious that use of ing-line.. It will also' be apparent that saidintermediate color-zone may be disposed! at any selected point along theplaten.

l 29, effective in' the described -way to dispose- Referring tov Figure`8.. of the drawings, there is illustrated a ribbon-inverting rider`twovdiierent color-zones at the printing-line and in alignment with oneanother.` There is also slidably mounted upon the rod 31-J another clip59, differing ,somewhat from the clip 29. The clip 59 has a diagonallower edge 60, againstwhich the ribbon 21 is ,bent to Lturn the sameatright angles, said ribbon then rising upward alongthe `clip 59.- A ydiagonal slotl inthe clip 59 redirects the ribbon'l at right angles and`thence directly to the right, so that the ribbon isdisposed.

suiiiciently above the printingfgline that'the types 13are effectiveonly to cause' typing to appear inthe regular way on the outer sheet.

v10. leaving the proof-sheet 11 untyped at -,said portioniremainin'guncovered bv reason of the elevatedposition of the auxiliary ribbon 21.

Variations maybe remrted to within the means for shifting s aid ribbon,

scope of the inventiom and portions of the im rovements may be usedwithout others.

aving thus' described my invention, I claim:

1. In a typewriting machine, the combination with a carriage, a platen,a main bi-v chrome ribbon. and ribbon-shifting means therefor, o anauxiliary .bichrome ribbon mounted upon the carriage to be interposedbetween a record-sheet and a'proo-sheet, and

auxiliary .ribbon-shifting means adjustable 'longitudinally of theplaten for inverting the shifting has inverted the ribbon 21 throughoutits entire length, thus bringing the .red

color-ields'of said auxiliary ribbon at any point along the line ofprint, said auxiliary ribbon-shifting means being mounted on thecarriage'v and the auxiliary. ribbon being threaded therethrough,whereby all .typed matter appearing in the two colors of the mainbichrome ribbon will be duplicated on' the proof-sheet by the auxiliarybichrome'ribbon.

' 2. In a 'typewriting machine,`the combination with a carriage, aplaten and a pri mary bichrome ribbon-mechanism including oi a second'.-

ary bichrome ribbon mounted upon the carriage and covering the line ofprint vetween `a record-sheet and aproof-sheet therebcneath,

means for feeding said secondary ribbon longitudinally, and aribbon-guide movableA with the carriageV and adjustable along the.platen for inverting said secondary ribbon,

the ribbon being threaded through said guide l and transposed thereby,whereby -the field which is lowermost on one side of the guideL will beuppermostat the opposite'side of said guide.`

3. Ima typewriting machine, the combination with a carriage, a platenand a primary bichrome ribbon-ield-shifting mechanism, of a secondaryribbon .mounted upon the carriage to coverthe longitudinal printing-lineand in interleaved relation with a recordsheet and a proof-sheet broughtto .typing position around the platen, and a ribbon-fieldshifting guidebeing slidably mounted upon the carriage and effective .to invert saidsecondary .ribbon `at any7 selected point along the line of print, so asto .coloperate withv the pri' mary ribbon in typing the same colors uponthe proof-sheetlas said primary-ribbon types uppnIt-he record-sheet.bination with a` carriage, a platen and a. main ribbon-inking mechanism,of an auxiliary inking ribbon mdunted upon the carriage tobra-interleaved between work-sheets to cover the l ongitudinalprinting-line-of the platen.

sadfiauxiliary ribbon having longitudinal folding means movable withIthe carriage and adjustable along the platen Vto reverse the ide forthe secondary ribbon, said n a typewriting machine, the coinilongitudinal fields ofthe auxiliary ribbon.

' atwilh'whereby typing in colors upon oncwork-sheet by the main'ribbonwill be duplicated upon another work-sheet by the auxiliary ribbon.

5. In a typewriting machine, the combination witha platen, of anauxiliary inkribbon to be interleaved with work-sheets brought to typingposition around'theplaten, said ribbon havin@ longitudinally-extendingfields of different (ilxaracteristics,guide-means for inverting theribbon to bring opposite fields thereof in horizontal alignment alongthe printing-line, and a second-guide-means for reinverting the ribbon,to provide an intermediate length of ribbon between the guides, of adifferent characteristic than the ribbon on the outer sides of saidguides.

6. In a typewriting machine, the combination with a platen, of anauxiliary ink-ribbon having longitudinally-extending elds of differentycharacteristics, guide-means for directing the ribbon so as to bringopposite fields thereof in horizontal alignment alonga portion of theplaten at the printing-line, and means for redirecting the ribbon,.whereby to dispose the same above the printing-line,

' along another portion of thev platen.-

7. In a typewriting,machine,.the combination with a platen, of anauxiliary ink-ribbon having longitudinally-extending fields of diferentcharacteristics,l a support extending alone' the platen, and a dviceslidingly adjusta le along Saidsupport, said device including means fordirecting the ribbon,

whereby to effect Van inversion of the c posite fields thereof, at anyselected point a 'ong l the platen,and means for clamping said: de-

vice-in any position along the support.

8. In a typewritmg machine, the combination with a carriage and aplaten, of an inking ribbon having longitudinal fields of differentcharacteristics, a cross-bar movable with the carriage, and guidingmeans for the ribbon, said guiding means including an adjustable devicemovable along the vcross-bar and having a series of diagonal edges,whereby the ribbon changes in folding around said edges is therebyinverted, so that the lowermostfield on o ne side of the device isuppermost on the opposite side of said device.I

9. In a typewriting machine, the combination with'a platen, of an inkingribbon having longitudinal fields of different characteristics, across-bar movable with the carriage, ribbon-spools adjacent the oppositeends of the platen, guidesl adjacent said spools fordirecting the ribbonfrom spool to spool to cover thelongitudinal printing line, land meansadjustable along said cross-bar and between said ribbon-spools forreversing the ribbon fields at any point along the line of print, sothat the field which is lowermost on one side of said ribbon-reversingmeans is uppermost on the opposite side ofsaid means.

10. In a typewriting machine, the combination with a platen andline-spacing mechanism therefor, of an inking ribbon having longitudinalelds of different characteristics,

ribbon-spools adjacent the opposite ends of the platen,fguides adjacentsaid spools for directing the ribbon from spool to spool ina .straightline over the typing position, whereby the lower field of the ribboncovers the printing line, and means mounted upon the carriage andadjustable between said ribbonthe platen to travel therewith, the'lowerfield l thereof to cover the printing line, and ribbonfield-changingmeans movable throughout the entire length of said platen, saidfield-changing means effecting-a reversal ofthe ribbonelds, whereby thelowermost ield on one side of said ribbon-field-changing means is theuppermost field on the opposite side thereof.

,12. In a typew-riting machine, the combination with-a carriage and aplaten, of an inking ribbon having longitudinal fields of differentcharacteristics, means for directing the-'ribbon so as to bring-eitherlribbon-field thereof into horizontal alignment to cover the printingline of the platen, said means including a rod mounted-upon the carriageparallel with the platen, and a yoke-shaped ribbon-field changing guideincluding a pair of downwardlyextending legs, said legs terminating inoppolill.

sitely-directed diagonal edges, each leg having a horizontal slot overthe diagonal edge thereof, the ribbon being folded around the diagonaledge of one leg and through the .horizontal slotthereof, thence throughthe hori- 4zontal slot of the other leg, and folded around ing line,said ribbon being 'threaded through tivelyl reverse the ribbon-fields atthe printsaidreversing means and folded' overjhe same, and the latterbei-ng shiftable along the platenl to effect such reversal of theribbon.

14.` In a typewriting machine, the combination with a platen, of anauxiliary ink-ribbon havinglongitudinally-extendin elds of dilferentcharacteristics, a ro extending .along the platen, and a ribbon-guideslidin'gy adjustable along said rod, the guide inclu ing a yoke fittingaround the rod and downwardly-extending legs, said legs being curved toconform to the curvature of the platen, and

said legs includin means fordirecting the ribbon, whereby t e lowermostfield on one side of said legs is the uppermost ieldon the opposite sideof said legs. v '15. In a typewriting machine, the combination with aplaten, of an auxiliary ink-ribbon having longitudinally-extendin fieldsof Adifferent characteristics dispose along the printing-line, and apair of -ribbonuides movable along the platen, the guides e ecting adouble inversionof the ribbon, whereby an intermediate field of adifferent characteristic from that on either side thereof is brou ht tothe printing-line, said ribbon-guides eng movable along the platenindependentlyof one another, wherebyl to locate the position of andvarythe length of saidintermediate field.

t 16. In a typewriting machine, the combina- ,Y

tion with a platen, of an auxiliary ink-ribbon havinglongitudinally-extending elds of different characteristics, aribbon-guide movy able along the platen said ribbon-guide elective todirect the ribbon, wherebiythe field which is lowermost on one side oth'eguide is uppermost on the opposite side of the guide, the lowerportion of the ribbon covering the printing-line ofthe platen, and asecond guide for disposing a length -of said ribbon abovetheprinting-line, said guides being movable 40 along the platen inependently of one another, whereby the len ths of the opositely-disposed fields may e varied A,an the extent of theprinting-line. uncovered by reason of the second guide also varied.

17. In a typewrting machine,"the combination with a carriage and' aplaten, of a .bichrome inking ribbon movable with the carriage andhaving one field thereof normal# ly in longitudinalalignment with therintling-line of the platen, and a ribbon-fie d re# verser includingribbon-deiiecting faces operative to turn the ribbon and reverse therelative positions of the ribbon-fields with'ut changing thelongitudinalalignment of the ribbon tothe printing-line.

' 18. In a typewriting machine, the combination with a carriage and aplaten, of a bicrome inkin ribbon movable with the car-- riage andhaving one field thereof normally in longitudinal alignment with theprintingline ofthe platen, and a ribbon-field reverserl includingribbon-deflecting faces operatlve to' turn the'ribbon and reversetherelative posif' y tions of theribbon-fields without changing thelongitudinal alignment of the ribbon to of ribbon-field changingldevices mounted n upon the carriage, through each of which the Vribbonis threaded and folded, each of said devices being settableindependently of the other to reverse the previous setting of thecolor-field of the ribbon whereb sections of the printing line may betype alternately in different colors without the attention .of ytheoperator.

20. vIn a typewriting machine, the combination with a carriage and aplaten for holding a record-sheet having a succession of column-'areasin each line to receive typed records alternately in .distinctivecolors, of a ribbon on the carriage and having two colorelds and a iixedlongitudinal feeding path, with one ribbon-field normally covering thewhole typing-line of. a recordfsheet, and a plurality lofribbon-Iield-changing devices in-- dependently settable along the platenon the carriage, the ribbonbeing threaded through and folding over bothdevices, and each device operative to reverse the ribbon-fields andpresent a color-section for eachvcolumn-are'a of the record-sheet thatis distinctive for the character of the record printed in each column..A

21. In a typewriting machine, the combination with a carriage and aplaten, of a ribbon having two color-fields and a fixed long'i f tudinalfeedin path, with one ribbon-field normally covermg the wholeprinting-line of a record-sheet, and a pair of ribbon-field changingdevices independently settable along the platen on the carriage, onedevice operative to reverse the normal lfields of the ribbon at theprinting-line, and the other device operative to reverse the fields setb the .first device to rest/'ore the ribbon-fiel s to their normalpositions.

, 22.' In a' typewriting machine, the combination witha carriage and aplaten, of -a twocolor ribbon carried by spools on-the carriage vandguided for a single stretch over the entire printin'gsline of theplaten, and means mounted upon the carriage between the ends of theplaten andoperative upon'the ribbon to divide theV ribbon-stretchbetween the spools into two separate stretches, the stretch on one sideof said means presenting to the printing-line ribbon-lields that arereverse to the ribbon-fields'of the stretch upon the other side of saidmeans.. 1

23. In a typewriting machine, the combinat-ion with a carriage, typingelements, and present in .longitudinal ali ment different ribbon-fieldsof different characteristics, of a' elds of the ribbon, Whereryl' twodifferent ribbon-field reverser movable with the carcolors may be. typedupon the same line of 10 rage and movable independently along the print.Within typing areas predetermined by 5 carriage to predetermine thepoint when the the setting of the rbbon-eld reverser.

reversal of the ribbon-fields shall take place, said rbbon-eld reversesbeing operative to JOHN WALDHEIM.

